- Renamed getEyeState() to readEyeState() for clarity
- Fixed setEyeStatus() to properly set eye status, and to  only turn off
  eye TX LED when eyes are actually turned off, not blocked
- Split eye update code out into updateEyeState()
- Fixed bug where eyes would not be turned back on when a   block was cleared
- Fixed code that updates LED color to indicate eye state
- Added ability to configure whether LED blinks or not in firing mode